add player methods and tests

src/js/player.js

@@ -3704,6 +3704,36 @@ class Player extends Component {
     return false;
   }
 
+  /**
+   * Add a <source> element to the <video> element.
+   *
+   * @param {string} srcUrl
+   *        The URL of the video source.
+   *
+   * @param {string} [mimeType]
+   *        The MIME type of the video source. Optional but recommended.
+   */
+  addSourceElement(srcUrl, mimeType) {
+    if (this.tech_) {
+      this.tech_.addSourceElement(srcUrl, mimeType);
+    }
+  }
+
+  /**
+   * Remove a <source> element from the <video> element by its URL.
+   *
+   * @param {string} srcUrl
+   *        The URL of the source to remove.
+   *
+   * @return {boolean}
+   *         Returns true if the source element was successfully removed, false otherwise.
+   */
+  removeSourceElement(srcUrl) {
+    if (this.tech_) {
+      return this.tech_.removeSourceElement(srcUrl);
+    }
+  }
+
   /**
    * Begin loading the src data.
    */

test/unit/player.test.js

@@ -3611,3 +3611,31 @@ QUnit.test('smooth seeking set to true should update the display time components
   player.dispose();
 });
 
+QUnit.test('addSourceElement calls tech method with correct args', function(assert) {
+  const player = TestHelpers.makePlayer();
+  const addSourceElementSpy = sinon.spy(player.tech_, 'addSourceElement');
+  const srcUrl = 'http://example.com/video.mp4';
+  const mimeType = 'video/mp4';
+
+  player.addSourceElement(srcUrl, mimeType);
+
+  assert.ok(addSourceElementSpy.calledOnce, 'addSourceElement method called');
+  assert.ok(addSourceElementSpy.calledWith(srcUrl, mimeType), 'addSourceElement called with correct arguments');
+
+  addSourceElementSpy.restore();
+  player.dispose();
+});
+
+QUnit.test('removeSourceElement calls tech method with correct args', function(assert) {
+  const player = TestHelpers.makePlayer();
+  const removeSourceElementSpy = sinon.spy(player.tech_, 'removeSourceElement');
+  const srcUrl = 'http://example.com/video.mp4';
+
+  player.removeSourceElement(srcUrl);
+
+  assert.ok(removeSourceElementSpy.calledOnce, 'removeSourceElement method called');
+  assert.ok(removeSourceElementSpy.calledWith(srcUrl), 'removeSourceElement called with correct arguments');
+
+  removeSourceElementSpy.restore();
+  player.dispose();
+});

test/unit/tech/tech-faker.js

@@ -111,6 +111,8 @@ class TechFaker extends Tech {
     }
     return 'movie.mp4';
   }
+  addSourceElement() {}
+  removeSourceElement() {}
   load() {
   }
   currentSrc() {